---

yaml
---
r: 286174
b: refs/heads/master
c: 088067f
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9bf04646b0b41c5438ed8a27c5f8dbe0ff40d756
+refs/heads/master: 088067f4f14d6ee5c6a196b015a560cbe7744224

trunk/net/netfilter/ipset/ip_set_core.c

@@ -77,43 +77,51 @@ find_set_type(const char *name, u8 family, u8 revision)
 }
 
 /* Unlock, try to load a set type module and lock again */
-static int
-try_to_load_type(const char *name)
+static bool
+load_settype(const char *name)
 {
 	nfnl_unlock();
 	pr_debug("try to load ip_set_%s\n", name);
 	if (request_module("ip_set_%s", name) < 0) {
 		pr_warning("Can't find ip_set type %s\n", name);
 		nfnl_lock();
-		return -IPSET_ERR_FIND_TYPE;
+		return false;
 	}
 	nfnl_lock();
-	return -EAGAIN;
+	return true;
 }
 
 /* Find a set type and reference it */
+#define find_set_type_get(name, family, revision, found)	\
+	__find_set_type_get(name, family, revision, found, false)
+
 static int
-find_set_type_get(const char *name, u8 family, u8 revision,
-		  struct ip_set_type **found)
+__find_set_type_get(const char *name, u8 family, u8 revision,
+		    struct ip_set_type **found, bool retry)
 {
 	struct ip_set_type *type;
 	int err;
 
+	if (retry && !load_settype(name))
+		return -IPSET_ERR_FIND_TYPE;
+
 	rcu_read_lock();
 	*found = find_set_type(name, family, revision);
 	if (*found) {
 		err = !try_module_get((*found)->me) ? -EFAULT : 0;
 		goto unlock;
 	}
-	/* Make sure the type is loaded but we don't support the revision */
+	/* Make sure the type is already loaded
+	 * but we don't support the revision */
 	list_for_each_entry_rcu(type, &ip_set_type_list, list)
 		if (STREQ(type->name, name)) {
 			err = -IPSET_ERR_FIND_TYPE;
 			goto unlock;
 		}
 	rcu_read_unlock();
 
-	return try_to_load_type(name);
+	return retry ? -IPSET_ERR_FIND_TYPE :
+		__find_set_type_get(name, family, revision, found, true);
 
 unlock:
 	rcu_read_unlock();
@@ -124,12 +132,19 @@ find_set_type_get(const char *name, u8 family, u8 revision,
  * If we succeeded, the supported minimal and maximum revisions are
  * filled out.
  */
+#define find_set_type_minmax(name, family, min, max) \
+	__find_set_type_minmax(name, family, min, max, false)
+
 static int
-find_set_type_minmax(const char *name, u8 family, u8 *min, u8 *max)
+__find_set_type_minmax(const char *name, u8 family, u8 *min, u8 *max,
+		       bool retry)
 {
 	struct ip_set_type *type;
 	bool found = false;
 
+	if (retry && !load_settype(name))
+		return -IPSET_ERR_FIND_TYPE;
+
 	*min = 255; *max = 0;
 	rcu_read_lock();
 	list_for_each_entry_rcu(type, &ip_set_type_list, list)
@@ -145,7 +160,8 @@ find_set_type_minmax(const char *name, u8 family, u8 *min, u8 *max)
 	if (found)
 		return 0;
 
-	return try_to_load_type(name);
+	return retry ? -IPSET_ERR_FIND_TYPE :
+		__find_set_type_minmax(name, family, min, max, true);
 }
 
 #define family_name(f)	((f) == AF_INET ? "inet" : \